Improvement in water-engines



v UNITED STATES PATENT OFFICE.

ABRAHAM OOA'IES AND MARTIN V. OSBORN, OF VATERTOWN, NEW YORK, ASSIGNORS TO THEMSELVES AND H. H. BABCOGK.

IMPROVEMENT IN WATER-ENGINES.

Specification forming part of Letters Patent No. 38,531, dated May l2, 1863.

To a/ZZ whom it may concern:

Be it known that we, ABRAHAM OOATEs and MARTIN V. OsBonN, of Watertown, in the county of Jefferson and State of New York, have invented certain Improvements in Water- Engines; and we do hereby declare the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

This invention relates to that class of waterengines intended for raising water; and it is intended, among other purposes, to supply the place,to some extent at least, of the hydraulic ram, now considerably in use.

In the drawings, Figure l is a vertical longitudinal section of our improved engine, with the exception of the principal portions of the valve-gear, which are represented in section. Fig. 2 is a vertical transverse section of the said engine.

A is the main cylinder of the engine, in which the piston E works to give propulsion to the other working parts. rlhe water to propel the engine is received into it through the pipe Gr, from which it passes to the valve 1), (shown in dotted lines in Fig. 1,) from which it is conducted through the passages I I alternately to the piston, the direction of the water to one or the other of these passages being accomplished by the valve b, the position of which is changed at each stroke by the operation ofthe valve-gear.

H is the eduction-pipe, through which the water is discharged from the engine after having given motion to the piston.

The valve-gear is operated by stops on the hollow piston-rod D, one of these stops being the hub of the piston E and. the other which is designated by the letter g., These stops strike against the arm h on the rod j', which is connected by the rod t' to the counterpoise d by means of the pin j, attached to the rod of said counterpoise, upon which pin the rodi works.

It will be observed, by an inspection of the parts, that the counterpoise d will be drawn over at the end of each stroke in such a manner as to throw its weight upon one or the other of the pins K of the valve-arm c, and

thereby trip the valve b. The rod i, it will be observed, is slotted at the end to receive the pin j, so as to give the counterpoise room to fall over. Near the end of the stroke, one of the stops on the piston-rod c, striking the arm. It, operates upon the counterpoise d so as to bring it past its center, when it will fall upon one of the pins K, and by that means shiit the valve so as to change the direction ofthe water and cause it to operate upon the opposite side of the piston. The valve b is made dat, or, in other words, is a dat plate in the middle, where the water operates upon it, and is made either conical or cylindrical at the endsprobably best conical-to iit into the bearings or flanges a a. The said valve is provided with anges u, as shown, which extends the bearing-portion or joint tting upon the ange a a. The valve is adjusted in position by a set-screw, e. J J are pistons, which work in cylinders B to force water from cylinder A through the passages O O up into the airchamber F, the water being admitted into said chamber by the opening of the valves l l. The water to supply the cylinders B B is admitted through holes m in a hollow piston, D, and by the opening of the valves o, which are opened and closed in an obvious manner by the action of the machine. When the valve b is shifted, a concussion is produced in the pipe G by the striking of the water upon the valve and the change of direction involved. We make this change of direction available to force an additional supply of water into the air-chamber F by attaching a pipe, L L, to this pipe G, and placing at the the entrance of said pipe the valve K, which is opened by the action of the water to allow the supply thus forced in to pass up into the air-chamber F, and as soon as the concussion has ceased to operate the valve K again closes. The water forced into the air-chamber F is conveyed to its destination through the pipe N.

Having thus fully described our invention, we claim 1. The combination, with the the induction pipe, of a water-en gine with the shifting-valve b, and with the air-chamber oi' the auxiliary pipe L and valve K, by which the concussion of the water upon the valve and piston is made to supply a portion of Water to the ltir-cham- 3. The combination of the flut valve b with ber, substantially as and for the purpose set a. Water-engine, substantially as set forth.

forth. ABM. COATES. 2. The construction of the Valve b of a sn- M. V. OSBORN.

gle fiat plate, in combination with the conical Witnesses:

or cylindrical heads or anges n n, substan- JAMES MARTIN, Jr.,

tially as set forth. NATHAN STRONG. 

